I was suggested to get some tetras for my Acara and Angelfish tank. One of the suggestions were Black Skirt Tetra. I bought 6, and they ate the tail and dorsal fin off my Angel (who is doing very well). i moved them to my goldfish tank. No long yummy fins, right? All was well for a few days, then I come home yesterday to a half eaten goldfish. Has anyone else had killer tetras, or where mine just little demon spawn?